PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/05-01:43:10
G10     254.9          30.1               12.4 +/-    1.84      21.6 +/-    1.84  0.130 / 0.400
G13     49.4           26.9                8.4 +/-    2.84      15.7 +/-    2.84  0.170 / 0.470
G15     79.3           57.2               11.5 +/-    0.69      13.4 +/-    0.69  0.030 / 0.040
G16     289.5          15.3                7.5 +/-    1.59      18.4 +/-    1.59  0.030 / 0.040
G20     270.2          46.8               13.8 +/-    3.09      18.1 +/-    3.09  0.060 / 0.150
G21     338.9          63.1               11.1 +/-    0.46      12.3 +/-    0.46  0.080 / 0.160
G26     261.8          13.6                8.4 +/-    2.06      21.7 +/-    2.06  0.040 / 0.060
G29     166.4          45.4               11.4 +/-    0.85      15.3 +/-    0.85  0.040 / 0.040